Author: ggregory
Date: Thu Oct 4 14:39:44 2018
New Revision: 1842822
URL: http://svn.apache.org/viewvc?rev=1842822&view=rev
Log:
@Ignore for [BEANUTILS-509]: This new test always fails with a JUnit test
timeout; with or without the change applied to WrapDynaClass.
Added:
commons/proper/beanutils/trunk/src/test/java/org/apache/commons/beanutils2/bugs/Jira509TestCase.java
Added:
commons/proper/beanutils/trunk/src/test/java/org/apache/commons/beanutils2/bugs/Jira509TestCase.java
URL:
http://svn.apache.org/viewvc/commons/proper/beanutils/trunk/src/test/java/org/apache/commons/beanutils2/bugs/Jira509TestCase.java?rev=1842822&view=auto
==============================================================================
---
commons/proper/beanutils/trunk/src/test/java/org/apache/commons/beanutils2/bugs/Jira509TestCase.java
(added)
+++
commons/proper/beanutils/trunk/src/test/java/org/apache/commons/beanutils2/bugs/Jira509TestCase.java
Thu Oct 4 14:39:44 2018
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.beanutils2.bugs;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.commons.beanutils2.WrapDynaClass;
+import org.junit.Ignore;
+import org.junit.Test;
+
+/**
+ * Tests Jira issue# BEANUTILS-509.
+ *
+ * The bug causes an infinite loop in WeakHashMap.get which was not accessed
in a thread safe manner. This originates
+ * with WrapDynaClass.createDynaClass().
+ */
+@Ignore("https://issues.apache.org/jira/browse/BEANUTILS-509; always fails
with a JUnit test timeout; with or without the change applied to
WrapDynaClass.")
+public class Jira509TestCase {
+
+ protected int random(final int max) {
+ return ((int) (Math.random() * 100_000)) % max;
+ }
+
+ /**
+ * The bug makes the {@link WrapDynaClass#createDynaClass} method run in
an infinite loop and acquire locks. The
+ * test case adds a timeout. The test case may pass even without this fix
because this is a rare scenario.
+ */
+ @Test(timeout = 60_000)
+ public void test_concurrent() throws InterruptedException {
+ final List<Class<?>> classList = Arrays.asList(Map.class,
HashMap.class, Collections.class, Arrays.class,
+ Collection.class, Set.class, ArrayList.class, List.class,
HashSet.class);
+
+ final ExecutorService executor = Executors.newFixedThreadPool(100, new
ThreadFactory() {
+
+ @Override
+ public Thread newThread(final Runnable r) {
+ final Thread thread = new Thread(r);
+ thread.setDaemon(true);
+ return thread;
+ }
+ });
+
+ for (int i = 1; i < 100_000_000; i++) {
+ executor.submit(new Runnable() {
+ Class<?> c = classList.get(random(classList.size()));
+
+ @Override
+ public void run() {
+ final WrapDynaClass w = WrapDynaClass.createDynaClass(c);
+ assert w != null;
+ }
+
+ });
+ }
+
+ executor.shutdown();
+ executor.awaitTermination(3500, TimeUnit.MILLISECONDS);
+
+ }
+
+}
\ No newline at end of file
